<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        var x = "男";
        switch(x){
            case "男":
                console.log("男");
                break;
            case "女":
                console.log("女");
                break;
            default:
                console.log("其他");
        }
    </script>
</body>
</html>